E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Layers-over for Meddlers.
Nothing that concerns you. A reproof to inquisitive children who want to know what a person is doing or making, when the person so engaged does not think proper to inform them. A layer-over is a whip or slap. And a layer-over for meddlers is a whip or chastise-for those who meddle with what does not concern them.